Aye, this sort of reasoning has been attempted before. However, it\'s not good. It is completely OOC, and I can\'t see any way to justify that name inside PS.
What you need is
1) an IC purpose that isn\'t already filled by another guild
2) an IC background that ties in neatly with the PS settings
3) a structure that fits the resulting guild and works to serve as infrastructure
4) a whole lot of dedication to maintain the guild
While I perfectly see that it is superficially appealing to have a \"cool sounding name\" (subject to personal preference, obviously) under your name, that\'s not what the guild system is for. By simply trying to imagine the guild in RL medieval times many of the unfitting cases can be immediately detected, as can the reason why naming a guild in an improper way or founding one just for the name isn\'t actually cool.
The DC is already on the edge (as are several others), but Gods of Thunder just won\'t work at all AFAICS. (reminds me of \"The Gods of War\", a truly noob guild that lived for a week or so IIRC)
So before wasting a lot of time trying to somehow force-fitting the OOC name into PS, and later on wasting lots of ingame money (and the effort obtaining it) just to have a short-lived non-guild I think it should be done the right way. Purpose, history, structure, name.